55-7x=-20+3x

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Solution for 55-7x=-20+3x equation:


Simplifying
55 + -7x = -20 + 3x

Solving
55 + -7x = -20 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.
55 + -7x + -3x = -20 + 3x + -3x

Combine like terms: -7x + -3x = -10x
55 + -10x = -20 + 3x + -3x

Combine like terms: 3x + -3x = 0
55 + -10x = -20 + 0
55 + -10x = -20

Add '-55' to each side of the equation.
55 + -55 + -10x = -20 + -55

Combine like terms: 55 + -55 = 0
0 + -10x = -20 + -55
-10x = -20 + -55

Combine like terms: -20 + -55 = -75
-10x = -75

Divide each side by '-10'.
x = 7.5

Simplifying
x = 7.5

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